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This 2B124SK sheave features two grooves
50B12 sprockets with a stock bore comes with the standard 5/8" inside diameter hole with no keyway or set screws and can be easily machine bored to custom sizes
Our SARFB206-19 bearing is dimensionally made to industry standards
Dimension (C): 2-3/8"
CSB207-21 Bearing Dimensions
50BS43 Sprocket With 1-3/16" Finished Bore 100B28 Sprockets This 2B124SK sheave features twoThis 50BS43 sprocket features a 1 3 16" finished bore including a key way and two setscrews. It is a durable, high quality, and precision sprocket that fully meets all ANSI Standards which insures proper contact between the #50 roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up. We also offer stock bore
